| Rollerball Pen |
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Rollerball pens use a ball point and a water-based Ink . By comparison, a typical Ballpoint Pen uses a ball point and an oil-based ink. The ink in a rollerball tends to saturate more deeply and more widely into the Paper than the ink from a ballpoint pen. TYPES There are two types of rollerball pens: those that use a liquid ink and those that use a Gel containing ink. A rollerball has two advantages over a ballpoint: first, less pressure needs to be applied to the pen to have it write cleanly. This permits holding the pen with less stress on the hand. Second, the ink is brighter. Gel rollerball pens use a jelly-like ink: the ink sets just after it is applied to the paper and is no longer being "rolled" around. Gel inks do not sink into the paper as much as liquid ink. Also, gels carry color better than liquid ink, so gel-based pens are available in a brighter and wider range of colors than liquid ink pens. DISADVANTAGES There are two disadvantages inherent to rollerball pens: first, the ink is more liable to smudge than a ball-point pen's ink because the ink dries more slowly, and second, the ink may seep through the paper. Thicker paper must be used with a rollerball pen than with a ballpoint, because the oil based ink does not penetrate deeply into the paper. The problem with gel inks is that they do not flow as readily as a liquid ink. This increases the likelihood of intermittent inking, where the flow of ink will randomly cease. SEE ALSO |
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